[Plugin: WP My Twitter] This pluginn does not work at all!

After installing the plugin, make sure to enter your twitter username and password in the WP My Twitter settings page. Next, make sure to add the WP My Twitter code to your theme. Once the plugin has your account and is set to display on your theme, your tweets will be posted.

If you have met both steps and the the plugin does not work, then you likely do not support the minimum requirements here.